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Finding the Fourth Proportional to 89,047, 122,884.86 and 49,303

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Solution

The fourth proportional to 89,047, 122,884.86 and 49,303 is: 68,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,047 : 122,884.86 = 49,303 : x
  2. Step 2: Convert to fraction form
    89,047/122,884.86 = 49,303/x
  3. Step 3: Cross multiply
    89,047x = 122,884.86 × 49,303
  4. Step 4: Simplify right side
    89,047x = 6,058,592,252.58
  5. Step 5: Solve for x
    x = 6,058,592,252.58/89,047
  6. Step 6: Final answer
    x = 68,038.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.